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(Green Coatings) Novel Hydrolytically Stable Silane Additives for Improving the Performance of

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As global environmental regulations continue to tighten restrictions on VOC-containing coatings, the need for hydrolytically stable additives in waterborne coatings has never been greater. Alkoxysilanes are a class of widely used additives in the coatings industry, as they act as adhesion promoters between organic coatings and inorganic substrates. Given the high moisture sensitivity of alkoxysilanes, most silane additives rapidly undergo condensation in waterborne coatings, leading to gelling of waterborne coatings within the first few weeks or months on the shelf.

Product Number: 99-COAT_DEC21
Author: Jacob Shevrin
Publication Date: 2021
Industry: Coatings
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$20.00
$20.00

As global environmental regulations continue to tighten restrictions on VOC-containing coatings, the need for hydrolytically stable additives in waterborne coatings has never been greater. Alkoxysilanes are a class of widely used additives in the coatings industry, as they act as adhesion promoters between organic coatings and inorganic substrates. Given the high moisture sensitivity of alkoxysilanes, most silane additives rapidly undergo condensation in waterborne coatings, leading to gelling of waterborne coatings within the first few weeks or months on the shelf. This has posed a significant barrier to using silane additives in waterborne coatings. In this new work, we demonstrate the improved properties of waterborne acrylic roof coatings with a novel epoxy-functional oligomeric silane additive that is stable over time. Several properties will be investigated, including stability, adhesion to roofing membranes, ponding water resistance, dirt pick-up resistance, tensile strength, flexibility, and UV weathering resistance. These new findings show significant progress in overcoming the biggest obstacle for the use of silanes in waterborne roof coatings. Coating manufacturers that previously could not use silane adhesion promoters in waterborne systems due to stability issues can now explore this technology with a significantly increased probability of success.

As global environmental regulations continue to tighten restrictions on VOC-containing coatings, the need for hydrolytically stable additives in waterborne coatings has never been greater. Alkoxysilanes are a class of widely used additives in the coatings industry, as they act as adhesion promoters between organic coatings and inorganic substrates. Given the high moisture sensitivity of alkoxysilanes, most silane additives rapidly undergo condensation in waterborne coatings, leading to gelling of waterborne coatings within the first few weeks or months on the shelf. This has posed a significant barrier to using silane additives in waterborne coatings. In this new work, we demonstrate the improved properties of waterborne acrylic roof coatings with a novel epoxy-functional oligomeric silane additive that is stable over time. Several properties will be investigated, including stability, adhesion to roofing membranes, ponding water resistance, dirt pick-up resistance, tensile strength, flexibility, and UV weathering resistance. These new findings show significant progress in overcoming the biggest obstacle for the use of silanes in waterborne roof coatings. Coating manufacturers that previously could not use silane adhesion promoters in waterborne systems due to stability issues can now explore this technology with a significantly increased probability of success.

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(Concrete) Choosing the Correct Technology for Lining Concrete

Product Number: 36-COAT_DEC21
Author: Brian Huffman
Publication Date: 2021
$20.00

The author will present on the various generic coatings technologies available for lining concrete and discuss the advantages and disadvantages of each one. Discussion will include epoxy, polyurethane and polyurea technologies. The goal of the presentation will be to provide some guidance to the attendees on when is the right application to select each technology as part of a specification.
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(Coating Application,Types & Characteristics) New SSPC Paint 47 Fluoropolymer Topcoat Standard for

Product Number: 13-COAT_DEC21
Author: Dr. Kurt Wood
Publication Date: 2021
$20.00

Since the 1980s, fluoropolymer resin technologies have offered the possibility of a quantum improvement in topcoat decorative properties- gloss and color retention- compared to conventional acrylic and polyester resins. Specifiers of both protective and architectural restoration coatings systems have expressed a need for a new SSPC standard for field-applied fluoropolymer topcoats, particularly for bright and saturated colors.
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(Coating Application, Types & Characteristics) Use of Duplex Coating Systems for Protection of Structural Steel

Product Number: 15-COAT_DEC21
Author: William D. Corbett
Publication Date: 2021
$20.00

The use of duplex coating systems (hot dip galvanizing or thermal spray coating with one or more liquid-applied coatings) for long term protection of structural steel is becoming more mainstream in many industries. This paper describes the advantages of employing duplex coating systems as well as some important considerations for designers prior to specifying their use. It also highlights an ongoing initiative to help agencies more efficiently and effectively use duplex coatings on steel bridges by developing guidelines, standards, and other materials.
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